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13 Modulation Accuracy (Composite EVM) Measurement
SPAN X Scale
Auto Scaling: I/Q Error View – Phase Error Window
When Auto Scaling is On and the Restart front-panel key is pressed, automatically displays the scale per
division and reference value results in the phase error window.
Key Path
SPAN X Scale
Mode
WCDMA
Remote Command
:DISPlay:RHO:VIEW2:WINDow3:TRACe:X[:SCALe]:COUPle 0|1|OFF|ON
:DISPlay:RHO:VIEW2:WINDow3:TRACe:X[:SCALe]:COUPle?
Example
DISP:RHO:VIEW2:WIND3:TRAC:X:COUP ON
DISP:RHO:VIEW2:WIND3:TRAC:X:COUP?
Notes
WINDow[3]: Phase window on I/Q Error view
Couplings
When this parameter is set to On, pressing the front-panel Restart key activates the scale coupling
function, that automatically determines scale per division and reference values based on the
measurement results. When you set a value to either Scale/Div or Ref Value manually, Auto Scaling
is automatically set to Off.
Preset
ON
State Saved
Saved in instrument state.
Range
On|Off
Initial S/W Revision
Prior to A.02.00
Start Code Number
Sets the start value of the code range for the code domain power graph (CDP).
Key Path
SPAN X Scale
Mode
WCDMA
Remote Command
:DISPlay:RHO:CDOMain:SPAN:STARt <integer>
:DISPlay:RHO:CDOMain:SPAN:STARt?
Example
DISP:RHO:CDOM:SPAN:STAR 10
DISP:RHO:CDOM:SPAN:STAR?
Couplings
The Start Code Number and Stop Code Number are coupled to each other, according to the following
conditions:
(A) Stop Code Number > Start Code Number
and
(B) Stop Code Number – Start Code Number >= 63
If the Changing Start Code Number does not satisfy conditions (A) and (B), the Stop Code Number is
changed to satisfy conditions (A) and (C) below.
(C) Stop Code Number – Start Code Number = 63;
Preset
0
State Saved
Saved in instrument state.
W-CDMA & HSPA Measurement Applications Reference
2299
Summary of Contents for E6640A
Page 80: ...Table of Contents lxxx W CDMA HSPA Measurement Applications Reference ...
Page 188: ...3 Programming the Test Set Common Commands 188 W CDMA HSPA Measurement Applications Reference ...
Page 256: ...5 Mode Functions Mode Setup 256 W CDMA HSPA Measurement Applications Reference ...
Page 324: ...6 System Functions System 324 W CDMA HSPA Measurement Applications Reference ...
Page 369: ...8 Channel Power Measurement Auto Couple W CDMA HSPA Measurement Applications Reference 369 ...
Page 389: ...8 Channel Power Measurement Marker W CDMA HSPA Measurement Applications Reference 389 ...
Page 664: ...9 ACP Measurement Auto Couple 664 W CDMA HSPA Measurement Applications Reference ...
Page 669: ...9 ACP Measurement BW W CDMA HSPA Measurement Applications Reference 669 ...
Page 984: ...9 ACP Measurement View Display 984 W CDMA HSPA Measurement Applications Reference ...
Page 1001: ...10 Spectrum Emission Mask Measurement W CDMA HSPA Measurement Applications Reference 1001 ...
Page 1668: ...12 Code Domain Measurement Auto Couple 1668 W CDMA HSPA Measurement Applications Reference ...
Page 2354: ...14 QPSK EVM Measurement 2354 W CDMA HSPA Measurement Applications Reference ...
Page 2364: ...14 QPSK EVM Measurement Auto Couple 2364 W CDMA HSPA Measurement Applications Reference ...